In the 1970s, women were dancing to disco, teetering around in platform sandals. Thankfully, all that’s changed. But one thing hasn’t: More women work in secretarial field than any other.

“That has been the case since we first started collecting this data in the 1970s,” says Liana Christin Landivar, a statistician and sociologist with the Census Bureau.

Landivar says today, more than three million women work as secretaries or administrative assistants. So, has anything changed since the '50s? Daniel Hammermesh says yes. He's a labor economist at the University of Texas.

“Oh come on," he says. "It’s not 'Ozzie and Harriet.' These things are much less pronounced than when I watched 'Ozzie and Harriet' in the ‘50s."

Hammermesh says, more women are getting college degrees. He started teaching in the '70s, and his classes were two-thirds male. Now, they’re almost 50-50. Those degrees are landing women better jobs. In 1970, about 9 percent of all female workers were secretaries. That’s been cut almost in half today, to about 5 percent. The Census Bureau report says there are now more female veterinarians, doctors and dentists.

Phillip Cohen is a sociologist at the University of Maryland. He says women did make great strides in the '70s and '80s, but things have stagnated since. “And I think one of the reasons why we haven’t seen more progress is women have sort of hit a wall where there’s not enough flexibility at home and work,” he says.

Cohen says employers could help by being more open to flextime. And the government could step in with more public preschool programs.

Here are some more interesting job facts we culled from the census data:

The largest occupation category for men was truck driver (3.2 million)

For women, the largest occupation category was secretary/administrative assistant (3.8 million)

The largest occupation category for Asians was computer software engineer (247,000)

Among African Americans/blacks, the largest occupation category was nursing, psychiatric/home health aide (731,000)

The largest occupation category for whites was secretary/administrative assistant (3.0 million)

Among Hispanics, construction laborer was the largest occupation category (409,000)

The fastest-growing occupation among all races was personal care aide.

Nancy Marshall-Genzer is a senior reporter for Marketplace, working from the Washington, D.C. Bureau. Nancy started with Marketplace in spring 2007, after filing freelance pieces for the program for years prior. Covering the daily news from the nation’s capital, Nancy has...